[hexagon][testing] nonrandom tests (apache#12164)

Add support for populating unit-test input tensors
with values other than random.

tests/python/contrib/test_hexagon/pytest_util.py

@@ -59,6 +59,22 @@ def get_single_param_chunk(param_val, param_desc: Optional[str]):
                 val_str = "F"
             need_prefix_separator = True
 
+        elif type(param_val) == TensorContentConstant:
+            val_str = f"const({param_val.elem_value})"
+            need_prefix_separator = True
+
+        elif type(param_val) == TensorContentDtypeMin:
+            val_str = "min"
+            need_prefix_separator = True
+
+        elif type(param_val) == TensorContentDtypeMax:
+            val_str = "max"
+            need_prefix_separator = True
+
+        elif type(param_val) == TensorContentRandom:
+            val_str = "random"
+            need_prefix_separator = True
+
         else:
             val_str = str(param_val)
             need_prefix_separator = True
@@ -91,3 +107,53 @@ def get_multitest_ids(
         get_test_id(*single_test_param_list, test_param_descs=param_descs)
         for single_test_param_list in multitest_params_list
     ]
+
+
+def get_numpy_dtype_info(np_dtype_name: str) -> Union[np.finfo, np.iinfo]:
+    """
+    Return an appropriate 'np.iinfo' or 'np.finfo' object corresponding to
+    the specified dtype.
+    """
+    np_dtype = np.dtype(np_dtype_name)
+    kind = np_dtype.kind
+
+    if kind == "f":
+        return np.finfo(np_dtype_name)
+    elif kind == "i":
+        return np.iinfo(np_dtype_name)
+    else:
+        raise TypeError(
+            f"np_dtype_name ({np_dtype_name}) must indicate some floating-point or integral data type"
+        )
+
+
+TensorContentConstant = collections.namedtuple("TensorContentConstant", ["elem_value"])
+TensorContentRandom = collections.namedtuple("TensorContentRandom", [])
+TensorContentDtypeMin = collections.namedtuple("TensorContentDtypeMin", [])
+TensorContentDtypeMax = collections.namedtuple("TensorContentDtypeMax", [])
+
+
+def create_populated_numpy_ndarray(
+    input_shape: Union[list, tuple], dtype: str, input_tensor_populator
+) -> np.ndarray:
+    """
+    Create a numpy tensor with the specified shape, dtype, and content.
+    """
+    itp = input_tensor_populator  # just for brevity
+
+    if type(itp) == TensorContentConstant:
+        return np.full(tuple(input_shape), itp.elem_value, dtype=dtype)
+
+    elif type(itp) == TensorContentDtypeMin:
+        info = get_numpy_dtype_info(dtype)
+        return np.full(tuple(input_shape), info.min, dtype=dtype)
+
+    elif type(itp) == TensorContentDtypeMax:
+        info = get_numpy_dtype_info(dtype)
+        return np.full(tuple(input_shape), info.max, dtype=dtype)
+
+    elif type(itp) == TensorContentRandom:
+        return np.random.random(input_shape).astype(dtype)
+
+    else:
+        raise ValueError(f"Unexpected input_tensor_populator type: {type(itp)}")

tests/python/contrib/test_hexagon/topi/test_avg_pool2d_slice.py

@@ -18,7 +18,6 @@
 import pytest
 import numpy as np
 from typing import *
-import collections
 
 from tvm import te
 import tvm.testing
@@ -27,7 +26,14 @@
 from tvm.contrib.hexagon.session import Session
 import tvm.topi.hexagon.slice_ops as sl
 from ..infrastructure import allocate_hexagon_array, transform_numpy
-from ..pytest_util import get_multitest_ids
+from ..pytest_util import (
+    get_multitest_ids,
+    create_populated_numpy_ndarray,
+    TensorContentConstant,
+    TensorContentRandom,
+    TensorContentDtypeMin,
+    TensorContentDtypeMax,
+)
 
 
 input_layout = tvm.testing.parameter(
@@ -36,8 +42,8 @@
 
 
 @tvm.testing.fixture
-def input_np(input_shape, dtype):
-    return np.random.random(input_shape).astype(dtype)
+def input_np(input_shape, dtype: str, input_tensor_populator):
+    return create_populated_numpy_ndarray(input_shape, dtype, input_tensor_populator)
 
 
 @tvm.testing.fixture
@@ -61,6 +67,7 @@ class TestAvgPool2dSlice:
         "cnt_padded",  # count_include_pad
         "out_layout",  # output_layout
         None,  # dtype
+        None,  # input_tensor_populator
     ]
 
     _multitest_params = [
@@ -74,6 +81,7 @@ class TestAvgPool2dSlice:
             True,
             "nhwc-8h2w32c2w-2d",
             "float16",
+            TensorContentRandom(),
         ),
         (
             [1, 16, 16, 32],
@@ -85,6 +93,7 @@ class TestAvgPool2dSlice:
             True,
             "nhwc-8h2w32c2w-2d",
             "float16",
+            TensorContentRandom(),
         ),
         (
             [1, 8, 8, 32],
@@ -96,6 +105,7 @@ class TestAvgPool2dSlice:
             True,
             "nhwc-8h2w32c2w-2d",
             "float16",
+            TensorContentRandom(),
         ),
         # Test non-one stride and dilation
         (
@@ -108,6 +118,7 @@ class TestAvgPool2dSlice:
             True,
             "nhwc-8h2w32c2w-2d",
             "float16",
+            TensorContentRandom(),
         ),
         (
             [1, 8, 8, 32],
@@ -119,6 +130,7 @@ class TestAvgPool2dSlice:
             True,
             "nhwc-8h2w32c2w-2d",
             "float16",
+            TensorContentRandom(),
         ),
         (
             [1, 8, 8, 32],
@@ -130,6 +142,7 @@ class TestAvgPool2dSlice:
             True,
             "nhwc-8h2w32c2w-2d",
             "float16",
+            TensorContentRandom(),
         ),
         # Test non-zero padding
         (
@@ -142,6 +155,7 @@ class TestAvgPool2dSlice:
             True,
             "nhwc-8h2w32c2w-2d",
             "float16",
+            TensorContentRandom(),
         ),
         (
             [1, 8, 8, 32],
@@ -153,6 +167,7 @@ class TestAvgPool2dSlice:
             True,
             "nhwc-8h2w32c2w-2d",
             "float16",
+            TensorContentRandom(),
         ),
         (
             [1, 8, 8, 32],
@@ -164,6 +179,7 @@ class TestAvgPool2dSlice:
             True,
             "nhwc-8h2w32c2w-2d",
             "float16",
+            TensorContentRandom(),
         ),
         (
             [1, 8, 8, 32],
@@ -175,6 +191,7 @@ class TestAvgPool2dSlice:
             True,
             "nhwc-8h2w32c2w-2d",
             "float16",
+            TensorContentRandom(),
         ),
         # Test n11c-1024c-2d layout which will require input and output to have different layout
         (
@@ -187,6 +204,7 @@ class TestAvgPool2dSlice:
             True,
             "n11c-1024c-2d",
             "float16",
+            TensorContentRandom(),
         ),
         (
             [1, 1, 1, 2048],
@@ -198,6 +216,7 @@ class TestAvgPool2dSlice:
             True,
             "n11c-1024c-2d",
             "float16",
+            TensorContentRandom(),
         ),
         (
             [1, 1, 1, 2048],
@@ -209,6 +228,7 @@ class TestAvgPool2dSlice:
             True,
             "n11c-1024c-2d",
             "float16",
+            TensorContentRandom(),
         ),
         (
             [1, 1, 1, 2048],
@@ -220,6 +240,7 @@ class TestAvgPool2dSlice:
             True,
             "n11c-1024c-2d",
             "float16",
+            TensorContentRandom(),
         ),
     ]
 
@@ -236,6 +257,7 @@ class TestAvgPool2dSlice:
         count_include_pad,
         output_layout,
         dtype,
+        input_tensor_populator,
     ) = tvm.testing.parameters(*_multitest_params, ids=_param_ids)
 
     @tvm.testing.fixture